The importance of controls in immunohistochemistry: how to validate an antibody, from research to diagnosis |
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Authors: | Adle-Biassette Homa Grassi Jacques Verney Catherine Walker Francine Choudat Laurence Hénin Dominique |
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Affiliation: | Laboratoire d'Anatomie et de Cytologie Pathologiques, H?pital Bichat-Claude Bernard, 46 rue Henry Huchard, 75877 Paris. homa.adle@bch.aphp.fr |
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Abstract: | The specificity of an immunohistochemical reaction is guaranteed by two sets of controls. Positive controls verify the specificity of the primary antibody and demonstrate that it binds only to the protein which was used as an immunogen. Negative controls ensure that the labelling technique is specific and that the primary antibody is responsible for generation of the immunostaining. In fact, the production of a labelling may also be related to cross reactivity or to non-specific physical or chemical interactions. This paper reviews the characteristics of various epitopes and antibodies, describes different strategies which prove the specificity of the immunohistochemical reaction in research or diagnostic pathology and point towards the essential information which should be reported in a paper. |
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